In a pot bring the vegetable broth to a boil, add the rosemary sprig, ground basil, fresh basil leaves, spaghetti, salt, and pepper.
Cook according to package directions on spaghetti.
While waiting, add the onions, tomatoes, thyme, and garlic to a food processor. Pulse until well combined.
When al dente, discard the basil leaves and rosemary sprig and incorporate the tomato sauce from the food processor.
Add in the parmesan cheese and stir well.
Divide into bowls, top with the fresh parsley. Serve and enjoy. How easy is that?